Heat the olive oil over medium-high in a large skillet or Dutch oven. Add the beef and cook, breaking up with a utensil, until browned. Add the salt, pepper, and garlic powder and stir to combine. Transfer the cooked meat to a (6-quart or larger) slow cooker. Add the remaining chili ingredients and stir gently to combine.

Cook on low for 6-8 hours or on high for 4-5 hours. Serve with desired toppings.